add .env file to checks workflow (#508)

* add .env file to checks workflow

* update .env.example comment

.github/workflows/checks.yml

@@ -27,6 +27,9 @@ jobs:
       - name: Build formbricks-js dependencies
         run: pnpm build --filter=js
 
+      - name: create .env
+        run: cp .env.example .env
+
       - name: Lint
         run: pnpm lint